*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, 2015 by Delphix. All rights reserved.
+ * Copyright (c) 2012, 2018 by Delphix. All rights reserved.
*/
/* Portions Copyright 2010 Robert Milkowski */
#include <sys/types.h>
#include <sys/param.h>
-#include <sys/systm.h>
#include <sys/sysmacros.h>
#include <sys/kmem.h>
#include <sys/pathname.h>
#include <sys/vnode.h>
#include <sys/vfs.h>
-#include <sys/vfs_opreg.h>
#include <sys/mntent.h>
-#include <sys/mount.h>
#include <sys/cmn_err.h>
-#include "fs/fs_subr.h"
#include <sys/zfs_znode.h>
#include <sys/zfs_vnops.h>
#include <sys/zfs_dir.h>
#include <sys/zap.h>
#include <sys/sa.h>
#include <sys/sa_impl.h>
-#include <sys/varargs.h>
#include <sys/policy.h>
#include <sys/atomic.h>
-#include <sys/mkdev.h>
-#include <sys/modctl.h>
-#include <sys/refstr.h>
#include <sys/zfs_ioctl.h>
#include <sys/zfs_ctldir.h>
#include <sys/zfs_fuid.h>
-#include <sys/bootconf.h>
#include <sys/sunddi.h>
-#include <sys/dnlc.h>
#include <sys/dmu_objset.h>
#include <sys/spa_boot.h>
#include <sys/zpl.h>
+#include <linux/vfs_compat.h>
#include "zfs_comutil.h"
enum {
boolean_t
zfs_is_readonly(zfsvfs_t *zfsvfs)
{
- return (!!(zfsvfs->z_sb->s_flags & MS_RDONLY));
+ return (!!(zfsvfs->z_sb->s_flags & SB_RDONLY));
}
/*ARGSUSED*/
{
zfsvfs_t *zfsvfs = sb->s_fs_info;
- /*
- * Data integrity is job one. We don't want a compromised kernel
- * writing to the storage pool, so we never sync during panic.
- */
- if (unlikely(oops_in_progress))
- return (0);
-
/*
* Semantically, the only requirement is that the sync be initiated.
* The DMU syncs out txgs frequently, so there's nothing to do.
switch (newval) {
case ZFS_ACLTYPE_OFF:
zfsvfs->z_acl_type = ZFS_ACLTYPE_OFF;
- zfsvfs->z_sb->s_flags &= ~MS_POSIXACL;
+ zfsvfs->z_sb->s_flags &= ~SB_POSIXACL;
break;
case ZFS_ACLTYPE_POSIXACL:
#ifdef CONFIG_FS_POSIX_ACL
zfsvfs->z_acl_type = ZFS_ACLTYPE_POSIXACL;
- zfsvfs->z_sb->s_flags |= MS_POSIXACL;
+ zfsvfs->z_sb->s_flags |= SB_POSIXACL;
#else
zfsvfs->z_acl_type = ZFS_ACLTYPE_OFF;
- zfsvfs->z_sb->s_flags &= ~MS_POSIXACL;
+ zfsvfs->z_sb->s_flags &= ~SB_POSIXACL;
#endif /* CONFIG_FS_POSIX_ACL */
break;
default:
return;
if (newval)
- sb->s_flags |= MS_RDONLY;
+ sb->s_flags |= SB_RDONLY;
else
- sb->s_flags &= ~MS_RDONLY;
+ sb->s_flags &= ~SB_RDONLY;
}
static void
return;
if (newval == TRUE)
- sb->s_flags |= MS_MANDLOCK;
+ sb->s_flags |= SB_MANDLOCK;
else
- sb->s_flags &= ~MS_MANDLOCK;
+ sb->s_flags &= ~SB_MANDLOCK;
}
static void
static int
zfs_space_delta_cb(dmu_object_type_t bonustype, void *data,
- uint64_t *userp, uint64_t *groupp)
+ uint64_t *userp, uint64_t *groupp, uint64_t *projectp)
{
+ sa_hdr_phys_t sa;
+ sa_hdr_phys_t *sap = data;
+ uint64_t flags;
+ int hdrsize;
+ boolean_t swap = B_FALSE;
+
/*
* Is it a valid type of object to track?
*/
znode_phys_t *znp = data;
*userp = znp->zp_uid;
*groupp = znp->zp_gid;
+ *projectp = ZFS_DEFAULT_PROJID;
+ return (0);
+ }
+
+ if (sap->sa_magic == 0) {
+ /*
+ * This should only happen for newly created files
+ * that haven't had the znode data filled in yet.
+ */
+ *userp = 0;
+ *groupp = 0;
+ *projectp = ZFS_DEFAULT_PROJID;
+ return (0);
+ }
+
+ sa = *sap;
+ if (sa.sa_magic == BSWAP_32(SA_MAGIC)) {
+ sa.sa_magic = SA_MAGIC;
+ sa.sa_layout_info = BSWAP_16(sa.sa_layout_info);
+ swap = B_TRUE;
} else {
- int hdrsize;
- sa_hdr_phys_t *sap = data;
- sa_hdr_phys_t sa = *sap;
- boolean_t swap = B_FALSE;
-
- ASSERT(bonustype == DMU_OT_SA);
-
- if (sa.sa_magic == 0) {
- /*
- * This should only happen for newly created
- * files that haven't had the znode data filled
- * in yet.
- */
- *userp = 0;
- *groupp = 0;
- return (0);
- }
- if (sa.sa_magic == BSWAP_32(SA_MAGIC)) {
- sa.sa_magic = SA_MAGIC;
- sa.sa_layout_info = BSWAP_16(sa.sa_layout_info);
- swap = B_TRUE;
- } else {
- VERIFY3U(sa.sa_magic, ==, SA_MAGIC);
- }
+ VERIFY3U(sa.sa_magic, ==, SA_MAGIC);
+ }
- hdrsize = sa_hdrsize(&sa);
- VERIFY3U(hdrsize, >=, sizeof (sa_hdr_phys_t));
- *userp = *((uint64_t *)((uintptr_t)data + hdrsize +
- SA_UID_OFFSET));
- *groupp = *((uint64_t *)((uintptr_t)data + hdrsize +
- SA_GID_OFFSET));
- if (swap) {
- *userp = BSWAP_64(*userp);
- *groupp = BSWAP_64(*groupp);
- }
+ hdrsize = sa_hdrsize(&sa);
+ VERIFY3U(hdrsize, >=, sizeof (sa_hdr_phys_t));
+
+ *userp = *((uint64_t *)((uintptr_t)data + hdrsize + SA_UID_OFFSET));
+ *groupp = *((uint64_t *)((uintptr_t)data + hdrsize + SA_GID_OFFSET));
+ flags = *((uint64_t *)((uintptr_t)data + hdrsize + SA_FLAGS_OFFSET));
+ if (swap)
+ flags = BSWAP_64(flags);
+
+ if (flags & ZFS_PROJID)
+ *projectp = *((uint64_t *)((uintptr_t)data + hdrsize +
+ SA_PROJID_OFFSET));
+ else
+ *projectp = ZFS_DEFAULT_PROJID;
+
+ if (swap) {
+ *userp = BSWAP_64(*userp);
+ *groupp = BSWAP_64(*groupp);
+ *projectp = BSWAP_64(*projectp);
}
return (0);
}
case ZFS_PROP_GROUPUSED:
case ZFS_PROP_GROUPOBJUSED:
return (DMU_GROUPUSED_OBJECT);
+ case ZFS_PROP_PROJECTUSED:
+ case ZFS_PROP_PROJECTOBJUSED:
+ return (DMU_PROJECTUSED_OBJECT);
case ZFS_PROP_USERQUOTA:
return (zfsvfs->z_userquota_obj);
case ZFS_PROP_GROUPQUOTA:
return (zfsvfs->z_userobjquota_obj);
case ZFS_PROP_GROUPOBJQUOTA:
return (zfsvfs->z_groupobjquota_obj);
+ case ZFS_PROP_PROJECTQUOTA:
+ return (zfsvfs->z_projectquota_obj);
+ case ZFS_PROP_PROJECTOBJQUOTA:
+ return (zfsvfs->z_projectobjquota_obj);
default:
return (ZFS_NO_OBJECT);
}
if (!dmu_objset_userspace_present(zfsvfs->z_os))
return (SET_ERROR(ENOTSUP));
+ if ((type == ZFS_PROP_PROJECTQUOTA || type == ZFS_PROP_PROJECTUSED ||
+ type == ZFS_PROP_PROJECTOBJQUOTA ||
+ type == ZFS_PROP_PROJECTOBJUSED) &&
+ !dmu_objset_projectquota_present(zfsvfs->z_os))
+ return (SET_ERROR(ENOTSUP));
+
if ((type == ZFS_PROP_USEROBJUSED || type == ZFS_PROP_GROUPOBJUSED ||
- type == ZFS_PROP_USEROBJQUOTA || type == ZFS_PROP_GROUPOBJQUOTA) &&
+ type == ZFS_PROP_USEROBJQUOTA || type == ZFS_PROP_GROUPOBJQUOTA ||
+ type == ZFS_PROP_PROJECTOBJUSED ||
+ type == ZFS_PROP_PROJECTOBJQUOTA) &&
!dmu_objset_userobjspace_present(zfsvfs->z_os))
return (SET_ERROR(ENOTSUP));
return (0);
}
- if (type == ZFS_PROP_USEROBJUSED || type == ZFS_PROP_GROUPOBJUSED)
+ if (type == ZFS_PROP_USEROBJUSED || type == ZFS_PROP_GROUPOBJUSED ||
+ type == ZFS_PROP_PROJECTOBJUSED)
offset = DMU_OBJACCT_PREFIX_LEN;
for (zap_cursor_init_serialized(&zc, zfsvfs->z_os, obj, *cookiep);
return (SET_ERROR(ENOTSUP));
if ((type == ZFS_PROP_USEROBJUSED || type == ZFS_PROP_GROUPOBJUSED ||
- type == ZFS_PROP_USEROBJQUOTA || type == ZFS_PROP_GROUPOBJQUOTA) &&
+ type == ZFS_PROP_USEROBJQUOTA || type == ZFS_PROP_GROUPOBJQUOTA ||
+ type == ZFS_PROP_PROJECTOBJUSED ||
+ type == ZFS_PROP_PROJECTOBJQUOTA) &&
!dmu_objset_userobjspace_present(zfsvfs->z_os))
return (SET_ERROR(ENOTSUP));
+ if (type == ZFS_PROP_PROJECTQUOTA || type == ZFS_PROP_PROJECTUSED ||
+ type == ZFS_PROP_PROJECTOBJQUOTA ||
+ type == ZFS_PROP_PROJECTOBJUSED) {
+ if (!dmu_objset_projectquota_present(zfsvfs->z_os))
+ return (SET_ERROR(ENOTSUP));
+ if (!zpl_is_valid_projid(rid))
+ return (SET_ERROR(EINVAL));
+ }
+
obj = zfs_userquota_prop_to_obj(zfsvfs, type);
if (obj == ZFS_NO_OBJECT)
return (0);
- if (type == ZFS_PROP_USEROBJUSED || type == ZFS_PROP_GROUPOBJUSED) {
- strlcpy(buf, DMU_OBJACCT_PREFIX, DMU_OBJACCT_PREFIX_LEN);
+ if (type == ZFS_PROP_USEROBJUSED || type == ZFS_PROP_GROUPOBJUSED ||
+ type == ZFS_PROP_PROJECTOBJUSED) {
+ strlcpy(buf, DMU_OBJACCT_PREFIX, DMU_OBJACCT_PREFIX_LEN + 1);
offset = DMU_OBJACCT_PREFIX_LEN;
}
case ZFS_PROP_GROUPOBJQUOTA:
objp = &zfsvfs->z_groupobjquota_obj;
break;
+ case ZFS_PROP_PROJECTQUOTA:
+ if (!dmu_objset_projectquota_enabled(zfsvfs->z_os))
+ return (SET_ERROR(ENOTSUP));
+ if (!zpl_is_valid_projid(rid))
+ return (SET_ERROR(EINVAL));
+
+ objp = &zfsvfs->z_projectquota_obj;
+ break;
+ case ZFS_PROP_PROJECTOBJQUOTA:
+ if (!dmu_objset_projectquota_enabled(zfsvfs->z_os))
+ return (SET_ERROR(ENOTSUP));
+ if (!zpl_is_valid_projid(rid))
+ return (SET_ERROR(EINVAL));
+
+ objp = &zfsvfs->z_projectobjquota_obj;
+ break;
default:
return (SET_ERROR(EINVAL));
}
}
boolean_t
-zfs_fuid_overobjquota(zfsvfs_t *zfsvfs, boolean_t isgroup, uint64_t fuid)
+zfs_id_overobjquota(zfsvfs_t *zfsvfs, uint64_t usedobj, uint64_t id)
{
char buf[20 + DMU_OBJACCT_PREFIX_LEN];
- uint64_t used, quota, usedobj, quotaobj;
+ uint64_t used, quota, quotaobj;
int err;
if (!dmu_objset_userobjspace_present(zfsvfs->z_os)) {
if (dmu_objset_userobjspace_upgradable(zfsvfs->z_os)) {
dsl_pool_config_enter(
dmu_objset_pool(zfsvfs->z_os), FTAG);
- dmu_objset_userobjspace_upgrade(zfsvfs->z_os);
+ dmu_objset_id_quota_upgrade(zfsvfs->z_os);
dsl_pool_config_exit(
dmu_objset_pool(zfsvfs->z_os), FTAG);
}
return (B_FALSE);
}
- usedobj = isgroup ? DMU_GROUPUSED_OBJECT : DMU_USERUSED_OBJECT;
- quotaobj = isgroup ? zfsvfs->z_groupobjquota_obj :
- zfsvfs->z_userobjquota_obj;
+ if (usedobj == DMU_PROJECTUSED_OBJECT) {
+ if (!dmu_objset_projectquota_present(zfsvfs->z_os)) {
+ if (dmu_objset_projectquota_upgradable(zfsvfs->z_os)) {
+ dsl_pool_config_enter(
+ dmu_objset_pool(zfsvfs->z_os), FTAG);
+ dmu_objset_id_quota_upgrade(zfsvfs->z_os);
+ dsl_pool_config_exit(
+ dmu_objset_pool(zfsvfs->z_os), FTAG);
+ }
+ return (B_FALSE);
+ }
+ quotaobj = zfsvfs->z_projectobjquota_obj;
+ } else if (usedobj == DMU_USERUSED_OBJECT) {
+ quotaobj = zfsvfs->z_userobjquota_obj;
+ } else if (usedobj == DMU_GROUPUSED_OBJECT) {
+ quotaobj = zfsvfs->z_groupobjquota_obj;
+ } else {
+ return (B_FALSE);
+ }
if (quotaobj == 0 || zfsvfs->z_replay)
return (B_FALSE);
- (void) sprintf(buf, "%llx", (longlong_t)fuid);
+ (void) sprintf(buf, "%llx", (longlong_t)id);
err = zap_lookup(zfsvfs->z_os, quotaobj, buf, 8, 1, "a);
if (err != 0)
return (B_FALSE);
- (void) sprintf(buf, DMU_OBJACCT_PREFIX "%llx", (longlong_t)fuid);
+ (void) sprintf(buf, DMU_OBJACCT_PREFIX "%llx", (longlong_t)id);
err = zap_lookup(zfsvfs->z_os, usedobj, buf, 8, 1, &used);
if (err != 0)
return (B_FALSE);
}
boolean_t
-zfs_fuid_overquota(zfsvfs_t *zfsvfs, boolean_t isgroup, uint64_t fuid)
+zfs_id_overblockquota(zfsvfs_t *zfsvfs, uint64_t usedobj, uint64_t id)
{
char buf[20];
- uint64_t used, quota, usedobj, quotaobj;
+ uint64_t used, quota, quotaobj;
int err;
- usedobj = isgroup ? DMU_GROUPUSED_OBJECT : DMU_USERUSED_OBJECT;
- quotaobj = isgroup ? zfsvfs->z_groupquota_obj : zfsvfs->z_userquota_obj;
-
+ if (usedobj == DMU_PROJECTUSED_OBJECT) {
+ if (!dmu_objset_projectquota_present(zfsvfs->z_os)) {
+ if (dmu_objset_projectquota_upgradable(zfsvfs->z_os)) {
+ dsl_pool_config_enter(
+ dmu_objset_pool(zfsvfs->z_os), FTAG);
+ dmu_objset_id_quota_upgrade(zfsvfs->z_os);
+ dsl_pool_config_exit(
+ dmu_objset_pool(zfsvfs->z_os), FTAG);
+ }
+ return (B_FALSE);
+ }
+ quotaobj = zfsvfs->z_projectquota_obj;
+ } else if (usedobj == DMU_USERUSED_OBJECT) {
+ quotaobj = zfsvfs->z_userquota_obj;
+ } else if (usedobj == DMU_GROUPUSED_OBJECT) {
+ quotaobj = zfsvfs->z_groupquota_obj;
+ } else {
+ return (B_FALSE);
+ }
if (quotaobj == 0 || zfsvfs->z_replay)
return (B_FALSE);
- (void) sprintf(buf, "%llx", (longlong_t)fuid);
+ (void) sprintf(buf, "%llx", (longlong_t)id);
err = zap_lookup(zfsvfs->z_os, quotaobj, buf, 8, 1, "a);
if (err != 0)
return (B_FALSE);
}
boolean_t
-zfs_owner_overquota(zfsvfs_t *zfsvfs, znode_t *zp, boolean_t isgroup)
+zfs_id_overquota(zfsvfs_t *zfsvfs, uint64_t usedobj, uint64_t id)
{
- uint64_t fuid;
- uint64_t quotaobj;
- struct inode *ip = ZTOI(zp);
-
- quotaobj = isgroup ? zfsvfs->z_groupquota_obj : zfsvfs->z_userquota_obj;
-
- fuid = isgroup ? KGID_TO_SGID(ip->i_gid) : KUID_TO_SUID(ip->i_uid);
-
- if (quotaobj == 0 || zfsvfs->z_replay)
- return (B_FALSE);
-
- return (zfs_fuid_overquota(zfsvfs, isgroup, fuid));
+ return (zfs_id_overblockquota(zfsvfs, usedobj, id) ||
+ zfs_id_overobjquota(zfsvfs, usedobj, id));
}
/*
else if (error != 0)
return (error);
+ error = zap_lookup(os, MASTER_NODE_OBJ,
+ zfs_userquota_prop_prefixes[ZFS_PROP_PROJECTQUOTA],
+ 8, 1, &zfsvfs->z_projectquota_obj);
+ if (error == ENOENT)
+ zfsvfs->z_projectquota_obj = 0;
+ else if (error != 0)
+ return (error);
+
error = zap_lookup(os, MASTER_NODE_OBJ,
zfs_userquota_prop_prefixes[ZFS_PROP_USEROBJQUOTA],
8, 1, &zfsvfs->z_userobjquota_obj);
else if (error != 0)
return (error);
+ error = zap_lookup(os, MASTER_NODE_OBJ,
+ zfs_userquota_prop_prefixes[ZFS_PROP_PROJECTOBJQUOTA],
+ 8, 1, &zfsvfs->z_projectobjquota_obj);
+ if (error == ENOENT)
+ zfsvfs->z_projectobjquota_obj = 0;
+ else if (error != 0)
+ return (error);
+
error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 8, 1,
&zfsvfs->z_fuid_obj);
if (error == ENOENT)
}
int
-zfsvfs_create(const char *osname, zfsvfs_t **zfvp)
+zfsvfs_create(const char *osname, boolean_t readonly, zfsvfs_t **zfvp)
{
objset_t *os;
zfsvfs_t *zfsvfs;
int error;
+ boolean_t ro = (readonly || (strchr(osname, '@') != NULL));
zfsvfs = kmem_zalloc(sizeof (zfsvfs_t), KM_SLEEP);
- /*
- * We claim to always be readonly so we can open snapshots;
- * other ZPL code will prevent us from writing to snapshots.
- */
- error = dmu_objset_own(osname, DMU_OST_ZFS, B_TRUE, B_TRUE,
- zfsvfs, &os);
- if (error) {
+ error = dmu_objset_own(osname, DMU_OST_ZFS, ro, B_TRUE, zfsvfs, &os);
+ if (error != 0) {
kmem_free(zfsvfs, sizeof (zfsvfs_t));
return (error);
}
+ error = zfsvfs_create_impl(zfvp, zfsvfs, os);
+ if (error != 0) {
+ dmu_objset_disown(os, B_TRUE, zfsvfs);
+ }
+ return (error);
+}
+
+int
+zfsvfs_create_impl(zfsvfs_t **zfvp, zfsvfs_t *zfsvfs, objset_t *os)
+{
+ int error;
+
zfsvfs->z_vfs = NULL;
zfsvfs->z_sb = NULL;
zfsvfs->z_parent = zfsvfs;
error = zfsvfs_init(zfsvfs, os);
if (error != 0) {
- dmu_objset_disown(os, B_TRUE, zfsvfs);
*zfvp = NULL;
kmem_free(zfsvfs, sizeof (zfsvfs_t));
return (error);
}
+ zfsvfs->z_drain_task = TASKQID_INVALID;
+ zfsvfs->z_draining = B_FALSE;
+ zfsvfs->z_drain_cancel = B_TRUE;
+
*zfvp = zfsvfs;
return (0);
}
zfsvfs_setup(zfsvfs_t *zfsvfs, boolean_t mounting)
{
int error;
+ boolean_t readonly = zfs_is_readonly(zfsvfs);
error = zfs_register_callbacks(zfsvfs->z_vfs);
if (error)
* operations out since we closed the ZIL.
*/
if (mounting) {
- boolean_t readonly;
+ ASSERT3P(zfsvfs->z_kstat.dk_kstats, ==, NULL);
+ dataset_kstats_create(&zfsvfs->z_kstat, zfsvfs->z_os);
/*
* During replay we remove the read only flag to
* allow replays to succeed.
*/
- readonly = zfs_is_readonly(zfsvfs);
- if (readonly != 0)
+ if (readonly != 0) {
readonly_changed_cb(zfsvfs, B_FALSE);
- else
+ } else {
+ zap_stats_t zs;
+ if (zap_get_stats(zfsvfs->z_os, zfsvfs->z_unlinkedobj,
+ &zs) == 0) {
+ dataset_kstats_update_nunlinks_kstat(
+ &zfsvfs->z_kstat, zs.zs_num_entries);
+ }
+ dprintf_ds(zfsvfs->z_os->os_dsl_dataset,
+ "num_entries in unlinked set: %llu",
+ zs.zs_num_entries);
zfs_unlinked_drain(zfsvfs);
+ }
/*
* Parse and replay the intent log.
vmem_free(zfsvfs->z_hold_trees, sizeof (avl_tree_t) * size);
vmem_free(zfsvfs->z_hold_locks, sizeof (kmutex_t) * size);
zfsvfs_vfs_free(zfsvfs->z_vfs);
+ dataset_kstats_destroy(&zfsvfs->z_kstat);
kmem_free(zfsvfs, sizeof (zfsvfs_t));
}
}
#endif /* HAVE_MLSLABEL */
+static int
+zfs_statfs_project(zfsvfs_t *zfsvfs, znode_t *zp, struct kstatfs *statp,
+ uint32_t bshift)
+{
+ char buf[20 + DMU_OBJACCT_PREFIX_LEN];
+ uint64_t offset = DMU_OBJACCT_PREFIX_LEN;
+ uint64_t quota;
+ uint64_t used;
+ int err;
+
+ strlcpy(buf, DMU_OBJACCT_PREFIX, DMU_OBJACCT_PREFIX_LEN + 1);
+ err = id_to_fuidstr(zfsvfs, NULL, zp->z_projid, buf + offset, B_FALSE);
+ if (err)
+ return (err);
+
+ if (zfsvfs->z_projectquota_obj == 0)
+ goto objs;
+
+ err = zap_lookup(zfsvfs->z_os, zfsvfs->z_projectquota_obj,
+ buf + offset, 8, 1, "a);
+ if (err == ENOENT)
+ goto objs;
+ else if (err)
+ return (err);
+
+ err = zap_lookup(zfsvfs->z_os, DMU_PROJECTUSED_OBJECT,
+ buf + offset, 8, 1, &used);
+ if (unlikely(err == ENOENT)) {
+ uint32_t blksize;
+ u_longlong_t nblocks;
+
+ /*
+ * Quota accounting is async, so it is possible race case.
+ * There is at least one object with the given project ID.
+ */
+ sa_object_size(zp->z_sa_hdl, &blksize, &nblocks);
+ if (unlikely(zp->z_blksz == 0))
+ blksize = zfsvfs->z_max_blksz;
+
+ used = blksize * nblocks;
+ } else if (err) {
+ return (err);
+ }
+
+ statp->f_blocks = quota >> bshift;
+ statp->f_bfree = (quota > used) ? ((quota - used) >> bshift) : 0;
+ statp->f_bavail = statp->f_bfree;
+
+objs:
+ if (zfsvfs->z_projectobjquota_obj == 0)
+ return (0);
+
+ err = zap_lookup(zfsvfs->z_os, zfsvfs->z_projectobjquota_obj,
+ buf + offset, 8, 1, "a);
+ if (err == ENOENT)
+ return (0);
+ else if (err)
+ return (err);
+
+ err = zap_lookup(zfsvfs->z_os, DMU_PROJECTUSED_OBJECT,
+ buf, 8, 1, &used);
+ if (unlikely(err == ENOENT)) {
+ /*
+ * Quota accounting is async, so it is possible race case.
+ * There is at least one object with the given project ID.
+ */
+ used = 1;
+ } else if (err) {
+ return (err);
+ }
+
+ statp->f_files = quota;
+ statp->f_ffree = (quota > used) ? (quota - used) : 0;
+
+ return (0);
+}
+
int
zfs_statvfs(struct dentry *dentry, struct kstatfs *statp)
{
zfsvfs_t *zfsvfs = dentry->d_sb->s_fs_info;
uint64_t refdbytes, availbytes, usedobjs, availobjs;
- uint64_t fsid;
- uint32_t bshift;
+ int err = 0;
ZFS_ENTER(zfsvfs);
dmu_objset_space(zfsvfs->z_os,
&refdbytes, &availbytes, &usedobjs, &availobjs);
- fsid = dmu_objset_fsid_guid(zfsvfs->z_os);
+ uint64_t fsid = dmu_objset_fsid_guid(zfsvfs->z_os);
/*
* The underlying storage pool actually uses multiple block
* size. Under Solaris frsize (fragment size) is reported as
*/
statp->f_frsize = zfsvfs->z_max_blksz;
statp->f_bsize = zfsvfs->z_max_blksz;
- bshift = fls(statp->f_bsize) - 1;
+ uint32_t bshift = fls(statp->f_bsize) - 1;
/*
* The following report "total" blocks of various kinds in
* "preferred" size.
*/
+ /* Round up so we never have a filesytem using 0 blocks. */
+ refdbytes = P2ROUNDUP(refdbytes, statp->f_bsize);
statp->f_blocks = (refdbytes + availbytes) >> bshift;
statp->f_bfree = availbytes >> bshift;
statp->f_bavail = statp->f_bfree; /* no root reservation */
* static metadata. ZFS doesn't preallocate files, so the best
* we can do is report the max that could possibly fit in f_files,
* and that minus the number actually used in f_ffree.
- * For f_ffree, report the smaller of the number of object available
+ * For f_ffree, report the smaller of the number of objects available
* and the number of blocks (each object will take at least a block).
*/
statp->f_ffree = MIN(availobjs, availbytes >> DNODE_SHIFT);
*/
bzero(statp->f_spare, sizeof (statp->f_spare));
+ if (dmu_objset_projectquota_enabled(zfsvfs->z_os) &&
+ dmu_objset_projectquota_present(zfsvfs->z_os)) {
+ znode_t *zp = ITOZ(dentry->d_inode);
+
+ if (zp->z_pflags & ZFS_PROJINHERIT && zp->z_projid &&
+ zpl_is_valid_projid(zp->z_projid))
+ err = zfs_statfs_project(zfsvfs, zp, statp, bshift);
+ }
+
ZFS_EXIT(zfsvfs);
- return (0);
+ return (err);
}
int
{
znode_t *zp;
+ zfs_unlinked_drain_stop_wait(zfsvfs);
+
/*
* If someone has not already unmounted this file system,
* drain the iput_taskq to ensure all active references to the
zfs_unregister_callbacks(zfsvfs);
/*
- * Evict cached data
+ * Evict cached data. We must write out any dirty data before
+ * disowning the dataset.
*/
- if (dsl_dataset_is_dirty(dmu_objset_ds(zfsvfs->z_os)) &&
- !zfs_is_readonly(zfsvfs))
+ if (!zfs_is_readonly(zfsvfs))
txg_wait_synced(dmu_objset_pool(zfsvfs->z_os), 0);
dmu_objset_evict_dbufs(zfsvfs->z_os);
struct inode *root_inode;
uint64_t recordsize;
int error = 0;
- zfsvfs_t *zfsvfs;
+ zfsvfs_t *zfsvfs = NULL;
+ vfs_t *vfs = NULL;
ASSERT(zm);
ASSERT(osname);
- error = zfsvfs_create(osname, &zfsvfs);
+ error = zfsvfs_parse_options(zm->mnt_data, &vfs);
if (error)
return (error);
- error = zfsvfs_parse_options(zm->mnt_data, &zfsvfs->z_vfs);
- if (error)
+ error = zfsvfs_create(osname, vfs->vfs_readonly, &zfsvfs);
+ if (error) {
+ zfsvfs_vfs_free(vfs);
goto out;
+ }
if ((error = dsl_prop_get_integer(osname, "recordsize",
- &recordsize, NULL)))
+ &recordsize, NULL))) {
+ zfsvfs_vfs_free(vfs);
goto out;
+ }
- zfsvfs->z_vfs->vfs_data = zfsvfs;
+ vfs->vfs_data = zfsvfs;
+ zfsvfs->z_vfs = vfs;
zfsvfs->z_sb = sb;
sb->s_fs_info = zfsvfs;
sb->s_magic = ZFS_SUPER_MAGIC;
zfsvfs->z_arc_prune = arc_add_prune_callback(zpl_prune_sb, sb);
out:
if (error) {
- dmu_objset_disown(zfsvfs->z_os, B_TRUE, zfsvfs);
- zfsvfs_free(zfsvfs);
+ if (zfsvfs != NULL) {
+ dmu_objset_disown(zfsvfs->z_os, B_TRUE, zfsvfs);
+ zfsvfs_free(zfsvfs);
+ }
/*
* make sure we don't have dangling sb->s_fs_info which
* zfs_preumount will use.
/* zfsvfs is NULL when zfs_domount fails during mount */
if (zfsvfs) {
+ zfs_unlinked_drain_stop_wait(zfsvfs);
zfsctl_destroy(sb->s_fs_info);
/*
* Wait for iput_async before entering evict_inodes in
int error;
if ((issnap || !spa_writeable(dmu_objset_spa(zfsvfs->z_os))) &&
- !(*flags & MS_RDONLY)) {
- *flags |= MS_RDONLY;
+ !(*flags & SB_RDONLY)) {
+ *flags |= SB_RDONLY;
return (EROFS);
}
if (error)
return (error);
+ if (!zfs_is_readonly(zfsvfs) && (*flags & SB_RDONLY))
+ txg_wait_synced(dmu_objset_pool(zfsvfs->z_os), 0);
+
zfs_unregister_callbacks(zfsvfs);
zfsvfs_vfs_free(zfsvfs->z_vfs);
}
mutex_exit(&zfsvfs->z_znodes_lock);
+ if (!zfs_is_readonly(zfsvfs) && !zfsvfs->z_unmounted) {
+ /*
+ * zfs_suspend_fs() could have interrupted freeing
+ * of dnodes. We need to restart this freeing so
+ * that we don't "leak" the space.
+ */
+ zfs_unlinked_drain(zfsvfs);
+ }
+
bail:
/* release the VFS ops */
rw_exit(&zfsvfs->z_teardown_inactive_lock);
dmu_tx_commit(tx);
zfsvfs->z_version = newvers;
+ os->os_version = newvers;
zfs_set_fuid_feature(zfsvfs);
int
zfs_get_zplprop(objset_t *os, zfs_prop_t prop, uint64_t *value)
{
- const char *pname;
- int error = SET_ERROR(ENOENT);
+ uint64_t *cached_copy = NULL;
/*
- * Look up the file system's value for the property. For the
- * version property, we look up a slightly different string.
+ * Figure out where in the objset_t the cached copy would live, if it
+ * is available for the requested property.
*/
+ if (os != NULL) {
+ switch (prop) {
+ case ZFS_PROP_VERSION:
+ cached_copy = &os->os_version;
+ break;
+ case ZFS_PROP_NORMALIZE:
+ cached_copy = &os->os_normalization;
+ break;
+ case ZFS_PROP_UTF8ONLY:
+ cached_copy = &os->os_utf8only;
+ break;
+ case ZFS_PROP_CASE:
+ cached_copy = &os->os_casesensitivity;
+ break;
+ default:
+ break;
+ }
+ }
+ if (cached_copy != NULL && *cached_copy != OBJSET_PROP_UNINITIALIZED) {
+ *value = *cached_copy;
+ return (0);
+ }
+
+ /*
+ * If the property wasn't cached, look up the file system's value for
+ * the property. For the version property, we look up a slightly
+ * different string.
+ */
+ const char *pname;
+ int error = ENOENT;
if (prop == ZFS_PROP_VERSION)
pname = ZPL_VERSION_STR;
else
}
error = 0;
}
+
+ /*
+ * If one of the methods for getting the property value above worked,
+ * copy it into the objset_t's cache.
+ */
+ if (error == 0 && cached_copy != NULL) {
+ *cached_copy = *value;
+ }
+
return (error);
}
zfsctl_fini();
}
-#if defined(_KERNEL) && defined(HAVE_SPL)
+#if defined(_KERNEL)
EXPORT_SYMBOL(zfs_suspend_fs);
EXPORT_SYMBOL(zfs_resume_fs);
EXPORT_SYMBOL(zfs_userspace_one);
EXPORT_SYMBOL(zfs_userspace_many);
EXPORT_SYMBOL(zfs_set_userquota);
-EXPORT_SYMBOL(zfs_owner_overquota);
-EXPORT_SYMBOL(zfs_fuid_overquota);
-EXPORT_SYMBOL(zfs_fuid_overobjquota);
+EXPORT_SYMBOL(zfs_id_overblockquota);
+EXPORT_SYMBOL(zfs_id_overobjquota);
+EXPORT_SYMBOL(zfs_id_overquota);
EXPORT_SYMBOL(zfs_set_version);
EXPORT_SYMBOL(zfsvfs_create);
EXPORT_SYMBOL(zfsvfs_free);
projects / mirror_zfs.git / blobdiff